Polyurethane Powder Coating
General Sumo:
Powder coatings yakagadzirwa nehydroxyl polyester resin, ine yakanakisa kemikari zvivakwa, uye yakanaka kwazvo yekushongedza, kuenzana, kupikisa makemikari, kuramba kwemamiriro ekunze uye kuramba kwakasimba kwemafuta.Inokodzera kupfekedzwa kwesimbi kwebhasikoro, mota, mudhudhudhu, muchina wekuzadza mafuta uye michina yekurima ine zvinodiwa zvakanyanya zvemakemikari kuramba uye kuramba mafuta.
Product Series:
kupa zvakakwirira (80% pamusoro), semi-mwenje (50-80%), girazi rakajeka (20-50%) uye hapana- mwenje (20% pazasi) zvigadzirwa kana pane zvinodiwa
Zvinhu Zvenyama:
Chaiyo giravhiti (g/cm3, 25℃): 1.4-1.7
Particle saizi kugovera: 100% isingasviki 100 micron (Inogona kugadziridzwa zvinoenderana nezvinodiwa zvakakosha zvekupfeka)
Mamiriro ekuvaka:
Pretreatment: kurapa kwakasiyana-siyana kwema substrates (phosphating kurapwa, ruzha rwekupfapfaidza kurapwa, kupfura peening kurapwa)
Kurapa maitiro: manual kana otomatiki static pfuti kuvaka
Kurapa mamiriro: 200 ℃ (workpiece tembiricha), maminitsi gumi
Coating performance:
| Testing chinhu | Kuongorora mwero kana nzira | Test zviratidzo |
| kukanganisa kuramba | ISO 6272 | 50kg.cm |
| cuping test | ISO 1520 | 8mm |
| simba rekunamatira (row lattice method) | ISO 2409 | 0 level |
| kukotama | ISO 1519 | 2mm |
| kuoma kwepenzura | ASTM D3363 | 1H-2H |
| munyu spray test | ISO 7253 | >500 maawa |
| bvunzo inopisa uye yakanyorova | ISO 6270 | >1000 maawa |
| kupisa kuramba | 150 ℃/24 maawa (chena) | yakanakisa kuchengetedza chiedza, ruvara musiyano≤0.3-0.4 |
Notes:
1.Miedzo iri pamusoro yakashandiswa 0.8mm gobvu inotonhora-yakakungurutswa simbi mahwendefa ane coating ukobvu 50-70 microns.
2.Indekisi yekushanda yejasi iri pamusoro inogona kuchinja nekuchinja kwemavara uye kupenya.
Avhareji yekuvhara:
9-11 sq.m./kg;firimu ukobvu 60 microns (akaverengerwa ne100% poda coating utilization rate)
Kurongedza uye chekufambisa:
makatoni akaiswa mabhegi epolyethylene, huremu hwemambure i20kg;Zvinhu zvisina ngozi zvinogona kutakurwa nenzira dzakasiyana-siyana, asi chete kudzivirira zuva rakananga, unyoro uye kupisa, uye kudzivirira kusangana nemakemikari zvinhu.
Zvido zvekuchengeta:
Yakachena, yakaoma, inofefetera, kure nechiedza, tembiricha yekamuri iri pasi pe30 ℃, uye inofanira kunge yakavharidzirwa kubva pamoto, kure nekupisa.Dzivisa stacking anopfuura mana akaturikidzana.
Notes:
Mapoda ese ari kutsamwisa kumweya wekufema, saka dzivisa kufemesa hupfu uye chiutsi kubva pakurapa.Edza kudzivisa kusangana kwakananga pakati peganda uye poda coating.Geza ganda nemvura nesipo pazvinenge zvakakodzera.Kana maziso akasangana, geza ganda nekukurumidza nemvura yakachena uye tsvaga kurapwa nekukurumidza.Dust layer uye poda particle deposition inofanira kudzivirirwa pamusoro uye pakona yakafa.Tiny organic particles anobatidza uye kukonzera kuputika pasi pemagetsi akamira.Midziyo yese inofanira kudzikwa, uye vashandi vekuvaka vanofanirwa kupfeka anti-static bhutsu kuchengetedza ivhu kudzivirira static magetsi.
